Muffle-furnace.



L. C. HAMLINK.

MUFFLE FURNACE.

APPLICATION FILED 0GT.9, 1911. RENEWBD 0GT.13, 1913y 1,081,960..Patented De@.23,1913.

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L. C. HAMLINK.

MUPFLE PURNACE.

APPLICATMN FILED 0019.1911. RENBWBD 0012.13, 191s.

1,081,960, Patented Dec. 23, 1913.

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9% W M M2M/Ufff strains il) Vgl l an @lill MZENR HAMLINK, F CLEVELAND,OHIO, ASSIGNE TO THE GAS lilAGHIN'IIIRY OMPANY, 0F CLEVELAND, (EH10, ACGBPQEMLJ'XGN 0F OHIO.

MUFFLE-FURNACE.

Specification of Letters Patent.

.tta teni-ted Dec. 23, 191%@ Application filed Getober 9, 1911, SerialNo. 653,692. Renewed Qctober 13, 1913. Serial No. 794,996'.

.Tb ailwiomz' may' concern:

Be it known that l, LAZENBY C. HAMLINK, citizen of the United States,resident of Clevelanth'eounty of Cuyahoga, ani State of Qhio, haveinvented a new and useful improvement in Mulde-Furnaces, of which thefollowing-is a specification, the principle of the invention beingherein explained and the best mode in which I have contemplated applyingthat principle, so as to distinguish it from other inventions. Y

My invention, while. having general reference as entitled, to ainutile-furnace, 'relates partieulfnly to the form of furnaceconstruction, and is still more specifically directed to the relativedisposition of partitions and distributing flues.

The object of this invention is the-provision of an apparatus whichshall combine. with economy of construction, a measurably increasedeconomy of operation.

The said invention consists of. means which are hereinafter fullydescribed and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detailcertain. mechanism embodying-the invention, the` disclosed means.however, constituting but ein` ot various mechanical forms in which theprinciple otthe invention may be applied.

Referring to the drawing, Figure l represents a vertical section of anapparatus embodying my invention. Fig. 2 is a horizontal section on lineII#II of Fig. l, looking in the direction of the arrows.

The figures represent in the main, as regards exterior outline, theapproved modernday type of inutile-furnace adapted for use in connectionwith .gas-producing apparatus. Se much only will be described asappertains to the essence of this invention and as will serve to afforda ready understanding of the operation. As already stated, theelemental. features .consist in an arrangement of oven partitions andintermediary tlucs such lthat. the desired results may be elfected.Referring to F ig. l., a gas generator is desig by the reference letterA, and

inclu in its lower construction a furnace comprising a grate c andfire-door a2. Ait the top-of the generator a suitable charging openingo3 is provided. The casing B is located some distance above the bottomof the generator, as is usual, in order topermit dumping conveyances tobe moved of the two chambers.

underneath. in the oven B, a plurality of retorts C, (in this instanceeight) are represented. These retorts, as shown, may be arranged in tworows of four each, running parallel with the wall interposed between theoven and theA generator, as clearly appearing in Fig. 2. All the retorlsextend vertically the entire height of the casing, and are providedabove and below with suitable charging and dumping appliances, notshown. lt has generally been found best to connect the two rows ofretorts through the medium of stiflening studs c, and also with theinner walls of the casing. The casing B, in accordance withA theillustrated form of my invention, is first divided in half by thesubstantially horizontal vpartition 7)', to form upper and lower heatingchambers having no directeommunication with each` other whatever. Eachof these chambers is then again divided in half by twohorizontal membersZ22 b2 serving as baille-plates, which are, however, each provided withfour openings designated as b3. These openings are located as mostclearly shown in Fie. :2, between that inner vertical wall o* ein thecasing farthest removed from the generator, and the outer sides of thefour respectively adjacent retorts. Heretofore these heating chambershave been connected with each other in series forming a single passagefor the gases of combustion, but by my im-, proved construction it willbe noted, as will hereinafter appear, that this passage or course isdivided into distinct and separate passages. Depending from each ofthese plates b2, and positioned immediately beneath the openings 723,are .two bag-walls each designated as b5. These bag-walls b may be. asshown, of greater crossseclional area than the openings b3, such thatthey may be firmly fitted between the inner wall and the particularretort adjacent thereto. and should furthermore extend somewhat nearerthe bottom As will now be evident, any gaseous mixture intended to reachthe upper division of the heating chambers through thev openings b3V is,after naturallyr rising in the lower divisions, drawn downwardly topermit of its passage'through these walls and on into the upperdivisions.v lt is this momentary retention of the gases, due to thesinuous'course they are in such wise compelled to take, which is'calculated to more uniformlyapply the heat. All the partitions justmentioned may be secured in any approved manner either to the sides ofLocated immediately above the channels @Z2 d2, and in fact insubstantial opposition thereto, are the air-inlets Z3 d3. These may havetheir intake at any part of the appa ratus that may be chosen, as willbe readily understood. The intermediary wall between the generator andcasing B is also provided near t-he top of each of the two upperdivisions with outlet openings d4 d4, to permit the exit of the wastegases priorto their arrival at the recuperator.

Considering the operation of the apparatus as a whole, it will beapparent that the producer gas will rise through the main inlet d', topass into the lower division of the lower chamber'through the channel(Z2, and also, after passing through the upright ue D, through the upperchannel d2, and almost immediately thereafterV each of these currentswill meet and become mixed with theincomingsupply of air through theopenings d d5. As should be obvious, the draftset up at each of theinlets cl2 and Z3 respectively, is such as will occasion a swirling,effecting/at one and the same time a better combustion and a morethorough disseminationv of heat throughout that particular division oithe heating chamber prior to the passage of the gases -up between thebagwalls L on their course to the outlets d4. is this indirectresistance and deflection of the gases downwardly by the bag-walls tothe strong draft likely to be set up in an apparatus of this characterwhich has been discovered actually detains the heat va suflicientlylonger period of time to more uniformly l the lower portions of theretorts iff each'ffleating chamber, and hence as a direct result, to addthat measure of increased eiiciency which is sought. Furthermore, bydividing the course of the gases of combustion, and thereby shorteningsuch course, a less velocity may be I'imparted thereto for the purposeof exhausting them, than when such cflurse is longer. fThis con-`dition` further contributes to the increased heatingbapacity of suchgases, inasmuch as they remain in contact with the retorts acorrespondingly increased time, and furthermore permits the gases to bebetter-controlled, since it is possible by this construc' tion tolvregulate the temperature in either being provided with a horizontalplate dividing same into upper and lower com-- partments; the lowercompartment of each chamber provided with an air inlet and the uppercompartment of each chamber with a gas outlet; said plate being providedwith means forming the sole gas inlet for the upper chamber; and a gasinlet establishing communication between said generator and llowercompartment of each chamber.

2. In a muftle furnace the combination of a generator; a casing; one ormore vertical' compartment of each chamber and a gas outlet. leadingfrom the upper compartment of each chamber into a suitable lue; saidpartition forming the sole inlet for said upper chamber.

3. A munie-furnace comprising the combination of a generator; a casing;a wall interposed between said generator and casing; one or morevertical retorts within said casing; a partition extending horizontallyacross said casing andforming superimposed and independent heatingchambers; al plurality of substantially horizontal plates, eachVprovided with an opening and disposed on opposite sides of saidpartition, said openings being remotely located.relative to said wall,and means comprising iues within said wall for simultaneously conductinggases to and from opposite sides of said plates. l

4. A muttle-furnac comprisingl the combination of a generator; a casing;one or more vertical retorts within said casing; a

substantially horizontal partition in said i opening and disposed onopposite sides of '100 municatlon between said furnace and lower lio 'ings being said partition; and a wall interposed between said generatorand casing, .said openlocated adjacent the opposite wall of the lat-ter,said interposed wall being pro'- vided with an upright fluecommunicating with said heating chambers diagonally below each suchopening, and with said generator, said wall further provided with outletopenings communicating with said chambers diagonally above each suchopening.

5. In a Inutile furnace the combination of a generator; a casing; one ormore retorts extending vertically within said casing; the latter forminga heating chamber around said retorts; a horizontal plate within saidcasing forming independent heating chambers divided into upper and lowercompartments; an inlet lestablishing' communication between said furnaceand one end ot' the lower compartment; and an outlet leading from theupper compartment into a suitable flue; said plate being provided withopeningI means therethrough forming the outlet from the lower 'chamberthe sole inlet' for the upper chamber; said means being placed in thatend of said plate which is opposite that end adjacent to the said firstnamed gas inlet.

G. A. inutile-furnace coinprising the combination of' a generator; acasing; one or more upright retorts intersecting the interior of saidcasing; a closed, subst itially horizontal. partition within said casingintersected by said retorts and forming independent heating chambers;substantially horizontal battle-plates extending across said chambersand positioned on opposite sides of said partition, each such platehaving an opening; bag-walls depending below said openings and affordingsole communication therethrough; and means for conducting gases to andfrom both sides of said plates.

7. A mutue-furnace comprising the conibination of a generator; a casinghaving an uprightwall. integral with said generator; one or more uprightretorts extending through the interior ot' said casing; a closed;substantially horizontal partition dividing said casing and intersectedby said 1etorts and forming independent heating enambers; substantiallyhorizontal battleplates extending across said chamber on opposite .sidesof said partition and intersected by said retorts, each ot said plateshaving an opening adjacent the opposite wall of said casing, saidintegral wall being provided with flues adapted to establishcommunication between said generator and corresponding sides of saidplates; saidwall being further" provided with outlet tlues communieatingwith said chambers on correspondingl'y opposite sides of said plates.

8. `A inutile-furnace comprising the 'combination of a generator; acasing having one upright wall integral therewith; one or more uprightretorts extending throughthe interior of said casing; a closed;substantially horizontal partition extending across said interior,intersected by said retorts; and forming independent heating chambers;substantially horizontal plates extending across said chambers andpositioned on,d opposite sides of said partition; said plates beingsimilarly intersected by said retorts and provided each with an openingadjacent the opposite wall of said casing; a bag-wall depending belowand inclosing each such opening.y said integral wall being provided withan upwardly extending iiue communicating withsaid generator and withsaid chamber below said bag-walls, said integra-l wall being furtherprovided with outlet and air inlet iiues communicating with saidchambers respectively above and below said plates.

S). In a inutile a generator; a casing;

furnace the combination of one or more retorts extending verticall)Ywithin said casing; the latter lorining a heating chamber around saidretortsfa horizontal plate forming independent heating chambers dividedinto an upper and lower compartment; a gas inlet establishingcommunication between that end of the lower compartment near saidturnace and the latter; and a gas outlet leading from the similar end ofthe upper compartment to a suitable tiuesaid plate being provided withopening means establishing conin'uinication between the upper and lowercompartments and at the opposite ends ot the latter and forming anoutlet for the` lower chamber. l

Signed by me; this 18th day of September, 1911.

L. C. HMINK. Attested by l). PLANTINGA; ANTON M. Surru.

